Docker parallel operations limit

docker concurrency dockerfile docker-registry
rmoh21 picture rmoh21 · Apr 18, 2017 · Viewed 14.5k times · Source

Is there a limit to the number of parallel Docker push/pulls you can do?

E.g. if you thread Docker pull / push commands such that they are pulling/pushing different images at the same time what would be the upper limit to the number of parallel push/pulls

Or alternatively

On one terminal you do docker pull ubuntu on another you do docker pull httpd etc - what would be the limit Docker would support?

Answer

Daniel I. Cruz picture Daniel I. Cruz · Dec 24, 2018

The options are set in the configuration file (Linux-based OS it is located in the path: /etc/docker/daemon.json and C:\ProgramData\docker\config\daemon.json on Windows)

Open /etc/docker/daemon.json (If doesn't exist, create it)

Add the values(for push/pulls) and set parallel operations limit

{
    "max-concurrent-uploads": 1,
    "max-concurrent-downloads": 1
}

Restart daemon: sudo service docker restart

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